GetUrlTag.java |
1 /** 2 * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to deal 6 * in the Software without restriction, including without limitation the rights 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 * copies of the Software, and to permit persons to whom the Software is 9 * furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 * SOFTWARE. 21 */ 22 23 package com.liferay.taglib.util; 24 25 import com.liferay.portal.kernel.util.StringPool; 26 import com.liferay.portal.kernel.util.Time; 27 import com.liferay.portal.kernel.util.Validator; 28 import com.liferay.portal.kernel.webcache.WebCacheItem; 29 import com.liferay.portal.kernel.webcache.WebCachePoolUtil; 30 31 import javax.servlet.jsp.JspException; 32 import javax.servlet.jsp.tagext.BodyTagSupport; 33 34 /** 35 * <a href="GetUrlTag.java.html"><b><i>View Source</i></b></a> 36 * 37 * @author Brian Wing Shun Chan 38 */ 39 public class GetUrlTag extends BodyTagSupport { 40 41 public int doEndTag() throws JspException { 42 try { 43 WebCacheItem wci = new GetUrlWebCacheItem(_url, _expires); 44 45 String content = (String)WebCachePoolUtil.get( 46 GetUrlTag.class.getName() + StringPool.PERIOD + _url, wci); 47 48 if (Validator.isNotNull(_var)) { 49 pageContext.setAttribute(_var, content); 50 } 51 else { 52 pageContext.getOut().print(content); 53 } 54 55 return EVAL_PAGE; 56 } 57 catch (Exception e) { 58 throw new JspException(e); 59 } 60 } 61 62 public void setUrl(String url) { 63 _url = url; 64 } 65 66 public void setExpires(long expires) { 67 _expires = expires; 68 } 69 70 public void setVar(String var) { 71 _var = var; 72 } 73 74 private String _url; 75 private long _expires = Time.WEEK; 76 private String _var; 77 78 }